Comments on: Via Twitter, an interesting regexp_replace puzzle http://only4left.jpiwowar.com/2009/04/regexp_replace_puzzle/ Oracle stuff. Some Linux and Mac stuff. ALTER TABLE blog DISABLE UNIQUE (content_type); Thu, 19 Jan 2012 20:13:32 +0000 hourly 1 http://wordpress.org/?v=3.1.4 By: jpiwowar http://only4left.jpiwowar.com/2009/04/regexp_replace_puzzle/comment-page-1/#comment-789 jpiwowar Tue, 07 Apr 2009 12:27:31 +0000 http://only4left.jpiwowar.com/2009/04/regexp_replace_puzzle/#comment-789 Hello Laurent, Re #1: Fewer characters == better. Your solution is much more tidy, thank you! Re #2: Argh, you are absolutely correct about the bug...I was far too quick when reviewing that code. :-( Thank you for your replace() solution, too. It's a good illustration that even if it looks like a regex problem, it may not be. Thank you very much for the beneficial corrections, and for the visit! Regards, John P. <del>Note to readers: The backslashes in Laurent's solution printed correctly, but my blog has a bad habit of inserting "smart" quotes instead of normal quotes, even in <pre> and <code> blocks. Please copy and paste with care, until I can correct my Wordpress setup. :)</del> Fixed, I think! Hello Laurent,

Re #1: Fewer characters == better. Your solution is much more tidy, thank you!

Re #2: Argh, you are absolutely correct about the bug...I was far too quick when reviewing that code. :-( Thank you for your replace() solution, too. It's a good illustration that even if it looks like a regex problem, it may not be.

Thank you very much for the beneficial corrections, and for the visit!

Regards,

John P.

Note to readers: The backslashes in Laurent's solution printed correctly, but my blog has a bad habit of inserting "smart" quotes instead of normal quotes, even in <pre> and <code> blocks. Please copy and paste with care, until I can correct my WordPress setup. :) Fixed, I think!

]]> By: Laurent Schneider http://only4left.jpiwowar.com/2009/04/regexp_replace_puzzle/comment-page-1/#comment-786 Laurent Schneider Tue, 07 Apr 2009 07:41:46 +0000 http://only4left.jpiwowar.com/2009/04/regexp_replace_puzzle/#comment-786 for the first solution, you can make it 5 char shorter ;) <code> regexp_replace('"a"bcd\"efg"hi"','(^|[^\])"+','\1|') </code> for the second solution, it is not only buggy, (there are four double-quotes between efg and hi), but it is also way to long and way to slow ! <code> replace(replace(replace('"""a"bcd\"efg""""hi""""','\"','ÿ'),'"','|'),'ÿ','\"') </code> (I hope the backslash will print correctly, I have lots of issues with backslash on my blog...) Thanks for the challenge! for the first solution, you can make it 5 char shorter ;)

regexp_replace('"a"bcd\"efg"hi"','(^|[^\])"+','\1|')

for the second solution, it is not only buggy, (there are four double-quotes between efg and hi), but it is also way to long and way to slow !

replace(replace(replace('"""a"bcd\"efg""""hi""""','\"','ÿ'),'"','|'),'ÿ','\"')

(I hope the backslash will print correctly, I have lots of issues with backslash on my blog...)

Thanks for the challenge!

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